Will make ! 19 pts

due to a rise in global sea level, a shallow sea covered most of eastern virginia during the cretaceous. virginia had drifted north from the equator and conditions no longer supported the formation of limestone. the tropical climate disappeared, replaced by more temperate conditions. in place of limy sediments, sand and silt were deposited as the sea level receded in the region we now know as the plateau region. under these conditions, we would expect to find more fossils of life forms in this location.

a) marine

b) primitive

c) single-celled

d) terrestrial

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2

30 ! the graph shows the number of siblings different students have. select from the drop-down menus to correctly complete the statement.